Examples of Strong Bases (Hydroxide compounds) in descending strenght:
- Potassium hydroxide (KOH)
- Barium hydroxide (Ba(OH)2)
- Cesium hydroxide (CsOH)
- Sodium hydroxide (NaOH)
- Strontium hydroxide (Sr(OH)2)
- Calcium hydroxide (Ca(OH)2)
- Lithium hydroxide (LiOH)
- Rubidium hydroxide (RbOH)
Base Property #5: Bases feel slippery, sometimes people say soapy. This is because they dissolve the fatty acids and oils from your skin and this cuts down on the friction between your fingers as you rub them together. In essence, the base is making soap out of you.
Common Acids and Bases - names and formulas
To determine whether a substance is an acid or a base, count the hydrogens on each substance before and after the reaction. If the number of hydrogens has decreased that substance is the acid (donates hydrogen ions). If the number of hydrogens has increased that substance is the base (accepts hydrogen ions).
In chemistry, a weak base is a base that does not ionize fully in an aqueous solution. As Brønsted–Lowry bases are proton acceptors, a weak base may also be defined as a chemical base in which protonation is incomplete. This results in a relatively low pH compared to strong bases.
Acids give off H+ (Hydrogen) ions in water; bases give off OH- (Hydroxide) ions in water. Acids generally taste sour due to the sour H+ ion; bases taste bitter due to the OH- ion; but they may have other tastes depending on the other part of the molecule. Acids corrode active metals ; Bases denature protein.
Other items around the house that contain bases consist of Ammonia, drain cleaner, baking soda, chalk, toothpaste, Windex, bleach, laundry detergent, shampoo, and egg whites.
The over-the-counter whitening products had a mean pH of 8.22 (range 5.09 to 11.13), and the whitening toothpastes had a mean pH of 6.83 (range 4.22 to 8.35). The 3 in-office bleaching products had a pH between 3.67 and 6.53.
Lye is a common strong base, with a chemical formula of NaOH (sodium hydroxide). Basic drain cleaners may also contain potassium hydroxide, KOH. Acidic drain cleaners commonly contain sulfuric acid, H2SO4.
For example, if you mix hydrochloric acid (HCl) with sodium hydroxide (NaOH), the products formed are water (H20) and sodium chloride(NaCl), which is well-known as table salt. The problem is that it isn't really that simple.
It is basic. It reacts with acids to produce carbon dioxide and water. It is the salt of the calcium ion a strong base and carbonic acid a very weak acid. Calcium carbonate, being the salt of a strong base and weak acid, is considered a base.
Examples of Bases and Alkalis
- Sodium hydroxide (NaOH) or caustic soda.
- Calcium hydroxide ( Ca(OH)2 ) or limewater.
- Ammonium hydroxide (NH4OH) or ammonia water.
- Magnesium hydroxide ( Mg(OH)2 ) or milk of magnesia.
- Many bleaches, soaps, toothpastes and cleaning agents.
- Sodium Bicarbonate - Baking Soda.
- Soap (A mild base)
- Oven Cleaner.
- Drain Cleaner.
- Ammonia (Sometime found in hair products or cleaning products)
- Washing Powder.
Acids in food such as vinegar (acetic acid), soda water (carbonic acid) and lemon juice (citric acid) are weak acids. Some acids can lose more than one proton. For example, carbonic acid can lose two protons, while citric and phosphoric acids can lose three. Bases, called alkalis if an OH- is involved, accept protons.
A measure of acidity or alkalinity of water soluble substances (pH stands for 'potential of Hydrogen'). A pH value is a number from 1 to 14, with 7 as the middle (neutral) point. Values below 7 indicate acidity which increases as the number decreases, 1 being the most acidic.
Four bases of American dating:
- F1 - French Kissing: First base is equivalent to french kissing, not just kissing.
- F2 - Feeling: Second base is touching of private extremities and/or appendages of the partners' body, aka boob touch.
- F3 - Fellatio: Third base is oral sex.
In chemistry, acids and bases have been defined differently by three sets of theories. One is the Arrhenius definition, which revolves around the idea that acids are substances that ionize (break off) in an aqueous solution to produce hydrogen (H+) ions while bases produce hydroxide (OH-) ions in solution.
Uses of bases. Sodium hydroxide is used in manufacture of soap, paper and a synthetic fiber called "rayon". Calcium hydroxide (slaked lime) is used in the manufacture of bleaching powder. Calcium hydroxide is also used to clean the sulfur dioxide, which is caused by exhaust, that is found in power plants and factories.
Acid is a substance that, when added to water, increases the concentration of H+ ions in the water. Windex is a base. A base is a chemical species that donates electrons or hydroxide ions or that accepts protons. PH level- The PH Level of Windex is not a definite figure.
Oranges and lemons, for instance, contain citric acid, which makes them acidic home products.
- Toothpaste. credit: Jupiterimages/Pixland/Getty Images.
- Vinegar. credit: Hemera Technologies/AbleStock.com/Getty Images.
- Carbonated Beverages. credit: ITStock Free/Polka Dot/Getty Images.
- Baking Soda.
- Cleaning Powders.